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October 25th, 2015, 09:17 PM   #1
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Complete the sequence

What is the missing number in the following sequence?

234;_____; 23,481; 234,819; 2,348,200

My guess is 2347...we have to add the last two digits.

Kindly tell me the rationale behind the sequence. Thanks
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October 26th, 2015, 05:21 AM   #2
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Seems like a good guess to me. A formula would be:
a(0) = 234.
for n > 0, a(n+1) = 10*a(n) + [floor(a(n)/10) mod 10] + [a(n) mod 10].
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